3420504520 has 64 divisors (see below), whose sum is σ = 7819856640. Its totient is φ = 1346284800.

The previous prime is 3420504517. The next prime is 3420504551. The reversal of 3420504520 is 254050243.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2109310 + ... + 2110930.

It is an arithmetic number, because the mean of its divisors is an integer number (122185260).

Almost surely, 2^3420504520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3420504520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3909928320).

3420504520 is an abundant number, since it is smaller than the sum of its proper divisors (4399352120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3420504520 is a wasteful number, since it uses less digits than its factorization.

3420504520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2446 (or 2442 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 3420504520 is about 58485.0794647661. The cubic root of 3420504520 is about 1506.7113375518.

Adding to 3420504520 its reverse (254050243), we get a palindrome (3674554763).

The spelling of 3420504520 in words is "three billion, four hundred twenty million, five hundred four thousand, five hundred twenty".